Long duration surge transients

Transient overvoltages or surges, generated by the most varied of causes, frequently occur in mains voltage networks. Particularly energy-rich are the surges that result when a fuse blows. Such transients have pulse widths extending into the region of milliseconds. These transients containing very high energy could damage electronic equipment. The author discusses equipment EM immunity test parameters and waveforms, the test generator and procedures, and protective measures.<
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